Question 1

What is mass flow rate?

Accepted Answer

Mass flow rate is the mass of substance passing through a given surface per unit time, measured in kg/s.

Question 2

How does mass flow rate differ from volumetric flow rate?

Accepted Answer

Mass flow rate (kg/s) measures mass per time, while volumetric flow rate (m³/s) measures volume per time. They are related by density.

Question 3

Why is mass flow rate preferred over volumetric in many processes?

Accepted Answer

Mass flow rate remains constant regardless of temperature and pressure changes, while volume can vary significantly. In chemical reactions, combustion, and energy calculations, mass is the conserved quantity, making mass flow rate more reliable for process control.

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